During the last few decades direct human persecution of birds of prey throughout England’s moorland uplands have taken a different and sinister tack. No longer do we find nests containing smashed eggs or dead chicks with their heads decapitated. No, the strategies being used today to reduce brood sizes have now become much more subtle and shrewd. To the ordinary bystander nothing would seem odd when nests containing eggs are found abandoned or broods of several healthy young are regularly reduced to just a single fledgling. Even the experts sometimes misinterpret the clues and get it wrong; never the less the methods of breeding disruption being used today are no less effective.

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